Author/Authors :
Mandai، نويسنده , , Kyoko and Korenaga، نويسنده , , Toshinobu and Ema، نويسنده , , Tadashi and Sakai، نويسنده , , Takashi and Furutani، نويسنده , , Mitsuaki and Hashimoto، نويسنده , , Hideki and Takada، نويسنده , , Jun، نويسنده ,
Abstract :
Iron oxide produced by iron-oxidizing bacteria, Leptothrix ochracea, (biogenous iron oxide: BIO) was used as a support for immobilized palladium catalysts with organic cross-linkers. Palladium immobilized on BIO bearing imidazolium chloride delivered the desired biaryl products in sufficient yields in the Suzuki–Miyaura coupling reactions under solvent-free conditions and could be reused several times without significant loss of catalytic activity. It is shown that BIO can be exploited as a useful support for immobilization of palladium and the BIO-immobilized palladium catalyst effectively promotes the solvent-free Suzuki–Miyaura coupling reactions.
Keywords :
Immobilized catalyst , Biogenous iron oxide , solvent-free reaction , palladium catalyst , Suzuki–Miyaura coupling reaction
